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Siri Falls
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Siri Falls, located on the island of Gaua, is the tallest waterfall in Vanuatu, featuring a dramatic drop of approximately 120 meters (394 feet). The falls are fed by the overflow of Lake Letas, the nation's largest freshwater lake, which flows through the Mbe Solomul River before plunging over a steep volcanic ridge. The massive volume of water cascades down a vertical basalt face into a pristine rainforest basin, creating a constant mist and a unique localized microclimate. Accessing the falls is a rigorous undertaking, requiring a guided trek through dense jungle and rugged terrain, making it a premier destination for adventurous nature seekers. Beyond its aesthetic appeal, the waterfall is ecologically significant for the local riverine system, supporting various endemic aquatic species. The surrounding geological formations bear witness to Gaua's complex volcanic history. For local communities, Siri Falls is a symbol of natural power and a cornerstone of the island's environmental heritage.
- Location: Vanuatu
- Top sights: Mount Gharat · Lake Letas
Best time to visit & climate
The most pleasant time to visit is Jul–Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 28 |
| Rain mm | 249 | 248 | 254 | 268 | 191 | 151 | 113 | 99 | 100 | 178 | 192 | 214 |
📋 Practical info
Getting there
Siri Falls on Gaua Island is accessible only on foot, typically following a trek from Lake Letas or a longer hiking journey starting from the island's coastline.
Best season
The months from May to October are handy as the trails are drier, though the falls maintain a strong flow year-round due to the drainage from Lake Letas.
Terrain & paths
The path leads through dense jungle and over uneven terrain; at the base of the 120-meter high falls, the ground is constantly wet and extremely slippery from the spray.
What to bring
Robust hiking boots with excellent traction, rain protection, and waterproof camera gear are necessary to safely document this impressive 120-meter waterfall.
Parking
There are no parking facilities near the falls; visitors typically leave any transport in the coastal villages before embarking on the remote jungle trek to the interior.
Safety
The sheer force of the water and wind at the base of the falls can be dangerous; stay at a safe distance from the plunge pool and avoid hiking the trails after dark.
Time needed
A hike to Siri Falls typically lasts a full day (6 to 8 hours round trip), often combined with an overnight stay near Lake Letas to fully experience the remote landscape.
Geography
Facts
- The waterfall has a total height of approximately 120 meters.
- It is fed exclusively by the outflow from Lake Letas.
- The falls are located on the eastern side of Gaua island.
- The Mbe Solomul River carries the water from the lake to the falls.
- The area is part of a nominated UNESCO World Heritage site.
- The falls are only accessible via a multi-hour trek through the jungle.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
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© OpenStreetMap contributors · OpenRouteService
Sights in the town Siri Falls (2)
Sights nearby
Frequently asked questions
How high is the waterfall?
The Siri Waterfall plunges from over 100 meters.
Can you swim under the waterfall?
Yes, the pool at the bottom is a wonderful place to swim.
Is the path there demanding?
It is a moderate hike through dense jungle.
Do I need a guide?
Yes, the paths are not marked and are hard to find.
Are there mosquitoes there?
Yes, definitely bring insect repellent.
Siri Falls: where is it located?
Siri Falls is located in Vanuatu.
Siri Falls: what is there to see?
Highlights include Mount Gharat, Lake Letas.
Siri Falls: when is the best time to visit?
The most pleasant time to visit is Jul, Sep.
Siri Falls: why is it worth visiting?
Siri Falls, located on the island of Gaua, is the tallest waterfall in Vanuatu, featuring a dramatic drop of approximately 120 meters (394 feet).
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History & landmarks
Port Vila City Hall
The City Hall is the administrative center for the municipal government of the capital, Port Vila.
Sola Provincial Headquarters
Sola serves as the administrative center for the Torba Province, located on Vanua Lava island.
Port Orly Coastline
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Champagne Beach Reefs
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Champagne Beach
Champagne Beach is famous for its white sand and bubbling waters at low tide, caused by volcanic gases leaking through the seafloor.
Lonnoc Beach Coral Garden
Lonnoc offers a sheltered reef system with an exceptionally high density of soft corals and reef fish.
Shark Bay
Shark Bay is a tranquil bay on Espiritu Santo known for its clear waters and extensive seagrass meadows.
Big Bay
Big Bay is the largest bay in Vanuatu, located in northern Espiritu Santo.
Nature
Mount Gharat
Mount Gharat is an active volcanic cone in the center of Gaua Island.
🗺️
Lake Letas Biodiversity Zone
Vanuatu's largest freshwater lake fills the crater of Gaua Island and is surrounded by dense primary forest.
Lake Letas
Lake Letas is the largest freshwater lake in Vanuatu, located on Gaua Island.
🗺️
Mount Sere'ama
Mount Sere'ama is the highest point on Vanua Lava Island.
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Port Olry Marine Reserve
This area protects extensive coral reefs and serves as a refuge for numerous tropical fish species.
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Loru Conservation Area
Loru protects one of the last coastal rainforests on Espiritu Santo, serving as a haven for rare bat species.
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Mount Tawenun
Mount Tawenun is the highest mountain on Maewo Island.
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Nanda Blue Hole
A natural limestone spring with crystal-clear water, forming an isolated ecosystem for freshwater life.
More places
Mount Garet
Mount Garet is the active volcanic cone at the center of Gaua Island, surrounded by the crescent-shaped Lake Letas.
Gaua Ancient Stone Walls
Mysterious stepped stone walls on Gaua Island, whose exact origins are still being archaeologically researched.
🗺️
Gaua Highlands
The Gaua Highlands surround the central crater lake, Lake Letas.
Sola Port
Vanuatu's northernmost significant port on Vanua Lava, serving as a supply link for the remote Banks Islands.
Mota Island Mission History
Mota Island was the center of the Melanesian Mission in the 19th century and the cradle of the Mota language as a lingua franca.
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Mota Lava Historic Church
One of the oldest churches in the Banks Islands, reflecting the influence of the Anglican mission.
Paimet Fortress Walls
Massive stone walls on the circular Ureparapara Island that once served defensive purposes.
Paimet Stone Fort
An impressive prehistoric stone fortress on Ureparapara, bearing witness to former tribal rivalries.